CN109245745A - A kind of signal generating method, device and radio-frequency unit - Google Patents
A kind of signal generating method, device and radio-frequency unit Download PDFInfo
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- CN109245745A CN109245745A CN201811268717.9A CN201811268717A CN109245745A CN 109245745 A CN109245745 A CN 109245745A CN 201811268717 A CN201811268717 A CN 201811268717A CN 109245745 A CN109245745 A CN 109245745A
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
- H03K5/01—Shaping pulses
- H03K5/04—Shaping pulses by increasing duration; by decreasing duration
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
- A61N1/36014—External stimulators, e.g. with patch electrodes
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Abstract
The present invention provides a kind of signal generating method, device and radio-frequency units, it is related to electronic technology field, it include: signal generating circuit, metal-oxide-semiconductor and transformer, wherein, the output end of signal generating circuit is connected with the first end of metal-oxide-semiconductor, and the second end of metal-oxide-semiconductor is connected with the primary side connecting terminal of transformer, and the third end of metal-oxide-semiconductor is connected with low level signal；Signal generating circuit is for generating the first pulse width modulation (PWM) signal and the second pulse width modulation (PWM) signal, wherein the first pwm signal and the second pwm signal are the pwm signal of mutual symmetry；Metal-oxide-semiconductor is used for alternate conduction and closing under the control of the first pwm signal and the second pwm signal；Transformer is used for being turned on and off based on metal-oxide-semiconductor, induction obtains sinusoidal signal in the secondary side induction coil of transformer, radio-frequency unit provided by the present invention has filled up prior art blank, is able to achieve that frequency is adjustable, duty ratio is adjustable, dead time is adjustable can satisfy most of skins.
Description
Technical field
The present invention relates to electronic technology fields, more particularly, to a kind of signal generating method, device and radio-frequency unit.
Background technique
With the development of economy, the raising of living standards of the people, women start increasingly to pay close attention to the health of itself, skin
Health is one of emphasis therein.Radio-frequency cosmetic instrument is common beauty-care physiotherapy instrument, it passes through under stimulation dermal layer of the skin
Collagen hyperplasia, thus reach tender skin, desalination wrinkle, promoted skin of face the effect of.
There are many bipolar and multi-level radio-frequency beauty instruments in radio-frequency cosmetic instrument currently on the market.Existing radio-frequency cosmetic instrument is set
It is equipped with the treatment probe of two or more contacts.Skin is contacted by treatment probe, to realize the mesothelium to electrode
The beauty-care physiotherapy function of skin contact surface.But the RF energy that is issued of the electrode of existing radio-frequency cosmetic instrument be it is constant, this
Will lead to existing radio-frequency cosmetic instrument has limitation to the beauty-care physiotherapy effect of different skin.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of signal generating method, device and radio-frequency unit, to alleviate
The technical issues of existing radio-frequency technique radio frequency effect is poor and the practicability is poor.
In a first aspect, the embodiment of the invention provides a kind of signal generation apparatus, comprising: signal generating circuit, metal-oxide-semiconductor and
Transformer, wherein the output end of the signal generating circuit is connected with the first end of the metal-oxide-semiconductor, and the second of the metal-oxide-semiconductor
End is connected with the primary side connecting terminal of the transformer, and the third end of the metal-oxide-semiconductor is connected with low level signal；The letter
Number generation circuit is for generating the first pulse width modulation (PWM) signal and the second pulse width modulation (PWM) signal, wherein described
First pwm signal and second pwm signal are the pwm signal of mutual symmetry；The metal-oxide-semiconductor is used to believe in the first PWM
Number and second pwm signal control under alternate conduction and closing；The transformer for based on the metal-oxide-semiconductor conducting and
It closes, induction obtains sinusoidal signal in the secondary side induction coil of the transformer.
Further, the signal generating circuit includes: processor and driving device, wherein the output of the processor
End is connected with the input terminal of the driving device, and the output end of the driving device is connected with the first end of the metal-oxide-semiconductor；
The processor is for generating the first initial p WM signal and the second initial p WM signal, wherein the first initial p WM signal and
The second initial p WM signal is the pwm signal of mutual symmetry；The driving device is used for the first initial p WM signal
Processing is amplified with the second initial p WM signal, obtains first pwm signal and second pwm signal.
Further, the metal-oxide-semiconductor includes: the first metal-oxide-semiconductor and the second metal-oxide-semiconductor, in which: the gate pole of first metal-oxide-semiconductor
It is connected with the output end of the signal generating circuit, the drain electrode of first metal-oxide-semiconductor is connected with low level signal, and described
The source electrode of one metal-oxide-semiconductor is connected with the first connecting terminal of the transformer primary side；The gate pole and the letter of second metal-oxide-semiconductor
The output end of number generation circuit is connected, and the drain electrode of second metal-oxide-semiconductor is connected with low level signal, second metal-oxide-semiconductor
Source electrode be connected with the second connecting terminal of the transformer primary side.
Further, the third connecting terminal of the transformer primary side is for obtaining initial voltage, wherein the transformer
The third connecting terminal of primary side is between first connecting terminal and second connecting terminal.
Further, the transformer is flat surface transformer.
Further, described device further include: electrode, the electrode are connected with the secondary side connecting terminal of the transformer
It connects, for obtaining the electric signal of the transformer output, and the sinusoidal signal is exported based on the electric signal got.
Further, the electrode includes: first electrode and second electrode, wherein the input terminal of the first electrode with
First secondary side connecting terminal is connected, and the input terminal of the second electrode is connected with the second secondary side connecting terminal.
Second aspect, the embodiment of the invention provides any in a kind of radio-frequency unit, including shell and above-mentioned first aspect
The inside of the shell is arranged in signal generation apparatus described in, the signal generation apparatus, and the shell is for protecting institute
State signal generation apparatus.
Further, the radio-frequency unit further include: control button；In the control button and the signal generation apparatus
Processor be connected, for adjusting the switch state and operation range of the radio-frequency unit.
The third aspect, the embodiment of the invention provides a kind of signal generating methods, are applied to any in above-mentioned first aspect
Signal generation apparatus described in, comprising: generate the first pulse width modulation (PWM) signal and the second pulse width modulation (PWM) letter
Number, wherein first pwm signal and second pwm signal are the pwm signal of mutual symmetry；Believed by the first PWM
Number and second pwm signal control being turned on and off for metal-oxide-semiconductor in the signal generation apparatus；Based on leading for the metal-oxide-semiconductor
Logical and closing, incudes in the secondary side induction coil of the transformer of the signal generation apparatus and exports sinusoidal signal.
In embodiments of the present invention, firstly, generating the first pulse width modulation (PWM) signal and the by signal generating circuit
Two pulse width modulation (PWM) signals；Then, the first pwm signal and the second pwm signal control metal-oxide-semiconductor alternate conduction and pass are utilized
It closes, during metal-oxide-semiconductor alternate conduction and closing, induction obtains sinusoidal signal in the secondary side induction coil of transformer, into
And radio frequency is realized by the sinusoidal signal.Radio frequency is realized using signal generation apparatus provided by the present embodiment, it is provided
Radio-frequency unit has filled up prior art blank, and being able to achieve that frequency is adjustable, duty ratio is adjustable, dead time is adjustable can satisfy mostly
Number skin, and then alleviate the technical issues of existing radio-frequency technique radio frequency effect is poor and the practicability is poor.
Other features and advantages of the present invention will illustrate in the following description, also, partly become from specification
It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention are in specification, claims
And specifically noted structure is achieved and obtained in attached drawing.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate
Appended attached drawing, is described in detail below.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of schematic diagram of signal generation apparatus according to an embodiment of the present invention；
Fig. 2 is the schematic diagram of the first optionally signal generation apparatus according to an embodiment of the present invention；
Fig. 3 is the schematic diagram of second according to an embodiment of the present invention optionally signal generation apparatus；
Fig. 4 is a kind of flow chart of signal generating method according to an embodiment of the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with attached drawing to the present invention
Technical solution be clearly and completely described, it is clear that described embodiments are some of the embodiments of the present invention, rather than
Whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, shall fall within the protection scope of the present invention.
Embodiment one:
According to embodiments of the present invention, a kind of embodiment of signal generation apparatus is provided.
Fig. 1 is a kind of schematic diagram of signal generation apparatus according to an embodiment of the present invention, as shown in Figure 1, the signal occurs
Device includes: signal generating circuit 10, metal-oxide-semiconductor 20 and transformer 30, wherein the output end of the signal generating circuit with it is described
The first end of metal-oxide-semiconductor is connected, and the second end of the metal-oxide-semiconductor is connected with the primary side connecting terminal of the transformer, the MOS
The third end of pipe is connected with low level signal.
Specifically, the signal generating circuit is for generating the first pulse width modulation (PWM) signal and the second pulse width
Modulation (PWM) signal, wherein first pwm signal and second pwm signal are the pwm signal of mutual symmetry.
It should be noted that in the present embodiment, the first pwm signal and the second pwm signal are the PWM of two-way mutual symmetry
Wave, and the frequency of this PWM wave, duty ratio and dead time are adjustable.It specifically, can be in the processing of signal generation apparatus
The frequency, duty ratio and dead time of PWM wave are adjusted in device.
The metal-oxide-semiconductor is used for alternate conduction and pass under the control of first pwm signal and second pwm signal
It closes；
The transformer is used for being turned on and off based on the metal-oxide-semiconductor, in the secondary side induction coil of the transformer
Induction obtains sinusoidal signal.
In embodiments of the present invention, firstly, generating the first pulse width modulation (PWM) signal and the by signal generating circuit
Two pulse width modulation (PWM) signals；Then, the first pwm signal and the second pwm signal control metal-oxide-semiconductor alternate conduction and pass are utilized
It closes, during metal-oxide-semiconductor alternate conduction and closing, induction obtains sinusoidal signal in the secondary side induction coil of transformer, into
And radio frequency is realized by the sinusoidal signal.Radio frequency is realized using signal generation apparatus provided by the present embodiment, it is provided
Radio-frequency unit has filled up prior art blank, and being able to achieve that frequency is adjustable, duty ratio is adjustable, dead time is adjustable can satisfy mostly
Number skin, and then alleviate the technical issues of existing radio-frequency technique radio frequency effect is poor and the practicability is poor.
In an optional embodiment, as shown in Fig. 2, signal generating circuit 10 includes: processor 11 and driving dress
Set 12, wherein the output end of the processor 11 is connected with the input terminal of the driving device, the driving device 12 it is defeated
Outlet is connected with the first end of the metal-oxide-semiconductor；
The processor 11 is for generating the first initial p WM signal and the second initial p WM signal, wherein at the beginning of described first
Beginning pwm signal and the second initial p WM signal are the pwm signal of mutual symmetry；
The driving device 12 is for amplifying the first initial p WM signal and the second initial p WM signal
Processing, obtains first pwm signal and second pwm signal.
It should be noted that in the present embodiment, it can also be DSP (Digital which, which can be single-chip microcontroller,
Signal Processing, data signal processor), (Field-Programmable Gate Array, i.e. scene can by FPGA
Program gate array) etc. equipment, be not specifically limited in the present embodiment.
If the processor is single-chip microcontroller, then the single-chip microcontroller exports the PWM wave of two-way mutual symmetry by I/O port, respectively
PWM1 (the first initial p WM signal), PWM2 (the second initial p WM signal).This PWM wave is (that is, the first initial p WM signal and second
Initial p WM signal) frequency, duty ratio and dead time it is adjustable.PWM1 and PWM2 are input in driving device, driving
Device output frequency is identical, duty ratio is identical, the PWM wave of the identical two-way mutual symmetry of dead time, respectively PWM3 (first
Pwm signal), PWM4 (the second pwm signal) keeps its driving capability stronger.
In an optional embodiment, as shown in figure 3, metal-oxide-semiconductor 20 includes: the first metal-oxide-semiconductor 21 and the second metal-oxide-semiconductor
22, in which:
The gate pole of first metal-oxide-semiconductor 21 is connected with the output end of the signal generating circuit, first metal-oxide-semiconductor
Drain electrode is connected with low level signal, and the source electrode of first metal-oxide-semiconductor is connected with the first connecting terminal of the transformer primary side
It connects；
The gate pole of second metal-oxide-semiconductor 22 is connected with the output end of the signal generating circuit, second metal-oxide-semiconductor
Drain electrode is connected with low level signal, and the source electrode of second metal-oxide-semiconductor is connected with the second connecting terminal of the transformer primary side
It connects.
It should be noted that in the present embodiment, the first metal-oxide-semiconductor is denoted as metal-oxide-semiconductor 1, the second metal-oxide-semiconductor is denoted as metal-oxide-semiconductor 2.
PWM3 and PWM4 controls the closing and conducting of metal-oxide-semiconductor 1 and metal-oxide-semiconductor 2 respectively.
In the present embodiment, as shown in figure 3, the third connecting terminal of transformer primary side for obtain initial voltage (that is,
Vin), wherein the third connecting terminal of the transformer primary side is located at first connecting terminal and second connecting terminal
Between.
Optionally, in the present embodiment, the transformer is flat surface transformer.
In the present embodiment, as shown in figure 3, the device further include: electrode 40, the secondary side of the electrode and the transformer
Connecting terminal is connected, and for obtaining the electric signal of the transformer output, and exports institute based on the electric signal got
State sinusoidal signal.
Optionally, the electrode 40 includes: first electrode 41 and second electrode 42, wherein the input of the first electrode
End is connected with the first secondary side connecting terminal, and the input terminal of the second electrode is connected with the second secondary side connecting terminal.
As shown in figure 3, when metal-oxide-semiconductor 1 be connected when, flat surface transformer initial voltage end (that is, third connecting terminal) with
Between the drain electrode of metal-oxide-semiconductor 1, closed circuit is formed, generates electric current.When metal-oxide-semiconductor 1 is closed, the initial voltage end of flat surface transformer
Closed circuit between (that is, third connecting terminal) and the drain electrode of metal-oxide-semiconductor 1 disconnects.When metal-oxide-semiconductor 1 is connected, in flat transformer
Induction obtains electric current (or voltage) in the induction coil on secondary side；Induction when metal-oxide-semiconductor 2 is connected, on the secondary side of flat transformer
Induction obtains electric current (or voltage) in coil.At this point, the electric current sensed (or voltage) is output to first electrode and
Two electrodes, and then form an approximate sine wave namely sinusoidal signal.
It should be noted that in the present embodiment, by adjusting the frequency of the sinusoidal signal, then the adjustable sine is believed
Number attainable depth of institute；By the duty ratio and dead time that adjust PWM wave, so that it may when adjustment signal generating device works
Temperature.
Embodiment two:
According to embodiments of the present invention, a kind of embodiment of radio-frequency unit is provided.
In the present embodiment, the radio-frequency unit is filled including signal described in any one of shell and above-described embodiment
It sets, the inside of the shell is arranged in the signal generation apparatus, and the shell is for protecting the signal generation apparatus.
Optionally, in the present embodiment, the radio-frequency unit further include: control button；
The control button is connected with the processor in the signal generation apparatus, for adjusting the radio-frequency unit
Switch state and operation range.
In the present embodiment, radio frequency is realized using signal generation apparatus provided by the present embodiment, more securely and reliably,
And then alleviate the technical issues of existing radio-frequency technique radio frequency effect is poor and the practicability is poor.
Embodiment three:
According to embodiments of the present invention, a kind of embodiment of signal generating method is provided, it should be noted that in attached drawing
The step of process illustrates can execute in a computer system such as a set of computer executable instructions, although also,
Logical order is shown in flow chart, but in some cases, it can be to be different from shown by sequence execution herein or retouch
The step of stating.
Fig. 4 is a kind of flow chart of signal generating method according to an embodiment of the present invention, as shown in figure 4, this method includes
Following steps:
Step S402 generates the first pulse width modulation (PWM) signal and the second pulse width modulation (PWM) signal, wherein institute
It states the first pwm signal and second pwm signal is the pwm signal of mutual symmetry；
Step S404 is controlled in the signal generation apparatus by first pwm signal and second pwm signal
Metal-oxide-semiconductor is turned on and off；
Step S406 is felt based on being turned on and off for the metal-oxide-semiconductor on the secondary side of the transformer of the signal generation apparatus
It answers and incudes in coil and export sinusoidal signal.
It should be noted that in the present embodiment, the above method is applied to signal described in above-described embodiment one and fills
Set or above-described embodiment two described in radio-frequency unit.
The concrete operating principle of radio-frequency unit and signal generation apparatus is described as follows:
Firstly, the single-chip microcontroller in signal generation apparatus exports the PWM wave of two-way mutual symmetry, respectively PWM1 by I/O port
(the first initial p WM signal), PWM2 (the second initial p WM signal).This PWM wave is (that is, the first initial p WM signal and second is initially
Pwm signal) frequency, duty ratio and dead time it is adjustable.PWM1 and PWM2 are input in driving device, driving device
Output frequency is identical, duty ratio is identical, the PWM wave of the identical two-way mutual symmetry of dead time, respectively PWM3 (the first PWM
Signal), PWM4 (the second pwm signal) keeps its driving capability stronger.PWM3 and PWM4 controls metal-oxide-semiconductor 1 and metal-oxide-semiconductor 2 respectively
It closes and is connected.
As shown in Figure 3 above, when metal-oxide-semiconductor 1 is connected, at the initial voltage end of flat surface transformer (that is, third terminals
Son) with the drain electrode of metal-oxide-semiconductor 1 between, formed closed circuit, generation electric current.When metal-oxide-semiconductor 1 is closed, the initial electricity of flat surface transformer
Closed circuit between pressure side (that is, third connecting terminal) and the drain electrode of metal-oxide-semiconductor 1 disconnects.When metal-oxide-semiconductor 1 is connected, in flat transformation
Induction obtains electric current (or voltage) in the induction coil on the secondary side of device；When metal-oxide-semiconductor 2 is connected, on the secondary side of flat transformer
Induction obtains electric current (or voltage) in induction coil.At this point, the electric current sensed (or voltage) is output to first electrode
And second electrode, and then form an approximate sine wave namely sinusoidal signal.
It should be noted that in the present embodiment, by adjusting the frequency of the sinusoidal signal, then the adjustable sine is believed
Number attainable depth of institute；By the duty ratio and dead time that adjust PWM wave, so that it may when adjustment signal generating device works
Temperature.
In embodiments of the present invention, firstly, generating the first pulse width modulation (PWM) signal and the by signal generating circuit
Two pulse width modulation (PWM) signals；Then, the first pwm signal and the second pwm signal control metal-oxide-semiconductor alternate conduction and pass are utilized
It closes, during metal-oxide-semiconductor alternate conduction and closing, induction obtains sinusoidal signal in the secondary side induction coil of transformer, into
And radio frequency is realized by the sinusoidal signal.Radio frequency is realized using signal generation apparatus provided by the present embodiment, it is provided
Radio-frequency unit has filled up prior art blank, and being able to achieve that frequency is adjustable, duty ratio is adjustable, dead time is adjustable can satisfy mostly
Number skin, and then alleviate the technical issues of existing radio-frequency technique radio frequency effect is poor and the practicability is poor.
In addition, in the description of the embodiment of the present invention unless specifically defined or limited otherwise, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In several embodiments provided herein, it should be understood that disclosed systems, devices and methods, it can be with
It realizes by another way.The apparatus embodiments described above are merely exemplary, for example, the division of the unit,
Only a kind of logical function partition, there may be another division manner in actual implementation, in another example, multiple units or components can
To combine or be desirably integrated into another system, or some features can be ignored or not executed.Another point, it is shown or beg for
The mutual coupling, direct-coupling or communication connection of opinion can be through some communication interfaces, device or unit it is indirect
Coupling or communication connection can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product
It is stored in the executable non-volatile computer-readable storage medium of a processor.Based on this understanding, of the invention
Technical solution substantially the part of the part that contributes to existing technology or the technical solution can be with software in other words
The form of product embodies, which is stored in a storage medium, including some instructions use so that
One computer equipment (can be personal computer, server or the network equipment etc.) executes each embodiment institute of the present invention
State all or part of the steps of method.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (ROM, Read-
Only Memory), random access memory (RAM, Random Access Memory), magnetic or disk etc. are various can be with
Store the medium of program code.
Finally, it should be noted that embodiment described above, only a specific embodiment of the invention, to illustrate the present invention
Technical solution, rather than its limitations, scope of protection of the present invention is not limited thereto, although with reference to the foregoing embodiments to this hair
It is bright to be described in detail, those skilled in the art should understand that: anyone skilled in the art
In the technical scope disclosed by the present invention, it can still modify to technical solution documented by previous embodiment or can be light
It is readily conceivable that variation or equivalent replacement of some of the technical features；And these modifications, variation or replacement, do not make
The essence of corresponding technical solution is detached from the spirit and scope of technical solution of the embodiment of the present invention, should all cover in protection of the invention
Within the scope of.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. a kind of signal generation apparatus characterized by comprising signal generating circuit, metal-oxide-semiconductor and transformer, wherein the letter
The output end of number generation circuit is connected with the first end of the metal-oxide-semiconductor, the original of the second end of the metal-oxide-semiconductor and the transformer
Side connecting terminal is connected, and the third end of the metal-oxide-semiconductor is connected with low level signal；
The signal generating circuit is used to generate the first pulse width modulation (PWM) signal and the second pulse width modulation (PWM) signal,
Wherein, first pwm signal and second pwm signal are the pwm signal of mutual symmetry；
The metal-oxide-semiconductor is used for alternate conduction and closing under the control of first pwm signal and second pwm signal；
The transformer is used for being turned on and off based on the metal-oxide-semiconductor, incudes in the secondary side induction coil of the transformer
Obtain sinusoidal signal.
2. the apparatus according to claim 1, which is characterized in that the signal generating circuit includes: processor and driving dress
Set, wherein the output end of the processor is connected with the input terminal of the driving device, the output end of the driving device with
The first end of the metal-oxide-semiconductor is connected；
The processor is for generating the first initial p WM signal and the second initial p WM signal, wherein the first initial p WM letter
Number and the second initial p WM signal be mutual symmetry pwm signal；
The driving device is obtained for amplifying processing to the first initial p WM signal and the second initial p WM signal
To first pwm signal and second pwm signal.
3. the apparatus according to claim 1, which is characterized in that the metal-oxide-semiconductor includes: the first metal-oxide-semiconductor and the second metal-oxide-semiconductor,
Wherein:
The gate pole of first metal-oxide-semiconductor is connected with the output end of the signal generating circuit, the drain electrode of first metal-oxide-semiconductor with
Low level signal is connected, and the source electrode of first metal-oxide-semiconductor is connected with the first connecting terminal of the transformer primary side；
The gate pole of second metal-oxide-semiconductor is connected with the output end of the signal generating circuit, the drain electrode of second metal-oxide-semiconductor with
Low level signal is connected, and the source electrode of second metal-oxide-semiconductor is connected with the second connecting terminal of the transformer primary side.
4. the apparatus according to claim 1, which is characterized in that the third connecting terminal of the transformer primary side is for obtaining
Initial voltage, wherein the third connecting terminal of the transformer primary side is located at first connecting terminal and second wiring
Between terminal.
5. device according to any one of claim 1 to 4, which is characterized in that the transformer is flat surface transformer.
6. the apparatus according to claim 1, which is characterized in that described device further include: electrode, the electrode and the change
The secondary side connecting terminal of depressor is connected, for obtaining the electric signal of the transformer output, and based on the electricity got
Signal exports the sinusoidal signal.
7. device according to claim 6, which is characterized in that the electrode includes: first electrode and second electrode,
In, the input terminal of the first electrode is connected with the first secondary side connecting terminal, the input terminal of the second electrode and the second pair
Side connecting terminal is connected.
8. a kind of radio-frequency unit, which is characterized in that sent out including signal described in any one of shell and the claims 1 to 7
The inside of the shell is arranged in generating apparatus, the signal generation apparatus, and the shell is for protecting the signal generation apparatus.
9. radio-frequency unit according to claim 8, which is characterized in that the radio-frequency unit further include: control button；
The control button is connected with the processor in the signal generation apparatus, for adjusting the switch of the radio-frequency unit
State and operation range.
10. a kind of signal generating method, special applied to signal generation apparatus described in any one of the claims 1 to 7
Sign is, comprising:
Generate the first pulse width modulation (PWM) signal and the second pulse width modulation (PWM) signal, wherein first pwm signal
It is the pwm signal of mutual symmetry with second pwm signal；
The conducting of metal-oxide-semiconductor and pass in the signal generation apparatus are controlled by first pwm signal and second pwm signal
It closes；
Based on being turned on and off for the metal-oxide-semiconductor, incude in the secondary side induction coil of the transformer of the signal generation apparatus
And export sinusoidal signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811268717.9A CN109245745A (en) | 2018-10-29 | 2018-10-29 | A kind of signal generating method, device and radio-frequency unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811268717.9A CN109245745A (en) | 2018-10-29 | 2018-10-29 | A kind of signal generating method, device and radio-frequency unit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113054960A (en) * | 2021-03-29 | 2021-06-29 | 杭州维那泰克医疗科技有限责任公司 | Electric signal output device, system, output method, and storage medium |
| CN113075600A (en) * | 2021-03-10 | 2021-07-06 | 华东师范大学 | Nuclear magnetic resonance radio frequency probe circuit and nuclear magnetic resonance radio frequency probe energy discharge method |
| CN114451987A (en) * | 2022-01-27 | 2022-05-10 | 江苏邦士医疗科技有限公司 | Intravenous cavity radio frequency closing system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107134929A (en) * | 2017-06-30 | 2017-09-05 | 苏州汇川联合动力系统有限公司 | Two-way DC converter and bidirectional, dc conversion control method |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107134929A (en) * | 2017-06-30 | 2017-09-05 | 苏州汇川联合动力系统有限公司 | Two-way DC converter and bidirectional, dc conversion control method |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113075600A (en) * | 2021-03-10 | 2021-07-06 | 华东师范大学 | Nuclear magnetic resonance radio frequency probe circuit and nuclear magnetic resonance radio frequency probe energy discharge method |
| CN113075600B (en) * | 2021-03-10 | 2022-12-30 | 华东师范大学 | Nuclear magnetic resonance radio frequency probe circuit and nuclear magnetic resonance radio frequency probe energy discharge method |
| CN113054960A (en) * | 2021-03-29 | 2021-06-29 | 杭州维那泰克医疗科技有限责任公司 | Electric signal output device, system, output method, and storage medium |
| CN114451987A (en) * | 2022-01-27 | 2022-05-10 | 江苏邦士医疗科技有限公司 | Intravenous cavity radio frequency closing system |
| CN114451987B (en) * | 2022-01-27 | 2023-08-22 | 邦士医疗科技股份有限公司 | Intravenous cavity radio frequency closing system |
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